CN110467837A - A kind of graphene inorganic phosphate aluminium paint and its coating production - Google Patents

A kind of graphene inorganic phosphate aluminium paint and its coating production Download PDF

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Publication number
CN110467837A
CN110467837A CN201910715267.1A CN201910715267A CN110467837A CN 110467837 A CN110467837 A CN 110467837A CN 201910715267 A CN201910715267 A CN 201910715267A CN 110467837 A CN110467837 A CN 110467837A
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CN
China
Prior art keywords
graphene
coating
phosphate
inorganic phosphate
aluminium
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CN201910715267.1A
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Chinese (zh)
Inventor
杨瑞
姜国杰
孙志华
原玲
汤智慧
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AECC Beijing Institute of Aeronautical Materials
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AECC Beijing Institute of Aeronautical Materials
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Priority to CN201910715267.1A priority Critical patent/CN110467837A/en
Publication of CN110467837A publication Critical patent/CN110467837A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • C09D5/10Anti-corrosive paints containing metal dust
    • C09D5/103Anti-corrosive paints containing metal dust containing Al
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24Electrically-conducting paints

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The present invention is a kind of graphene inorganic phosphate aluminium paint and its coating production, the coating is using graphene as modifying agent, using aluminium powder as anticorrosive packing, use phosphate solution and silica solution for film forming matter, and add the surface modifiers such as wetting dispersing agent, defoaming agent and prepare coating, then ferrous metals surface spraying, be heating and curing prepares coating.The coating of this method preparation, due to being added to graphene modifying agent, compared with common phosphate aluminized coating, surface can be connected without blast processing, have good sacrifice antiseptic property;Meanwhile the coating surface is fine and close, without obvious pore structure, can be used alone, and is not necessarily to mating closing surface layer.

Description

A kind of graphene inorganic phosphate aluminium paint and its coating production
Technical field
The present invention is a kind of graphene inorganic phosphate aluminium paint and its coating production, belongs to coating and coating preparation Technical field.
Background technique
The compressor blade of aero-engine and ground gas turbine largely uses stainless steel material in the fabrication process, In use, the impact of high-voltage high-speed air, the erosion of corrosive media and high-temperature oxydation and corrosion are born, is easy Generate corrosion or erosion attack;Oil gas, industrial waste gas, profit of the compressor blade under the conditions of corrosion and erosion, in air simultaneously Oil gas in sliding system etc. can cause the air mass flow of compressor to reduce in blade surface fouling, efficiency decline.
Phosphate coating is a kind of protective coating for being provided simultaneously with antiscour, high temperature resistant and corrosion-resistant triple functions, complete It is widely applied on World Airways engine and compressor steel part.Sermatech International company, U.S. sixties The baking-type phosphate coating for going by the code name SermeTel-W of exploitation and Indestructible Paints company, Britain are raw The IPcote series protective coating product of production belongs to such product.Currently, these two types of products have application at home, it is domestic There is similar product, from the point of view of the case where applying, this kind of product can solve corrosion of the steel blade in 600 DEG C or less environment and ask Topic, but the corrosion resistance of coating is general, is found by analysis, and it is resistance to reduce its there are a large amount of holes for the surface of the type coating Corrosive nature;Meanwhile the coating surface conduction is bad, affects aluminium powder and plays its sacrifice antisepsis.
Graphene is a kind of two-dimensional material of novel individual layer laminated structure being made of carbon atom, electricity, calorifics and Good mechanical performance, to get more and more people's extensive concerning.In addition, the graphene of lamellar structure has good screen in the coating The effect of covering and " labyrinth effect ", can effectively hinder and extend the infiltration of corrosive medium in the coating, to slow down corrosion.This is stone Black alkene enhancing inorganic phosphate aluminized coating corrosion resisting property provides possibility, after being added in coating system, it is possible to significantly improve The antiseptic property of coating, while improving the electric conductivity of coating.
Summary of the invention
The present invention is exactly directed to above-mentioned the problems of the prior art and designs and provide a kind of graphene inorganic phosphate aluminium Coating and its coating production increase the conduction of coating surface the purpose is to reduce the pore structure of coating surface, thus Promote the high-temperature resistant anti-corrosive performance of coating.
The purpose of the present invention is achieved through the following technical solutions:
Technical solution of the present invention provides a kind of graphene inorganic phosphate aluminium paint, it is characterised in that: the change of the coating It studies point and weight percent are as follows: graphene 0.1-1%, aluminium powder 35-45%, phosphate 15-20%, silica solution 2-5%, surface Auxiliary agent 1-2%, surplus are deionized water.
In implementing one, the graphene is graphene powder or graphene aqueous slurry.Wherein, graphene powder has Electric conductivity is conducive to the electric conductivity for promoting coating surface;Graphene dispersion is preferable in graphene aqueous slurry, advantageously reduces Coating surface porosity.
In implementing one, the aluminium powder is ball-type aluminium powder, and partial size is 2~5 μm.The aluminium powder of the particle size range be capable of providing compared with Good antiseptic property, while viscosity of the coating is more appropriate.
In implementing one, the phosphate solution is one or more of aluminum phosphate, magnesium phosphate or chrome phosphate solution Mixture.Further, aluminum phosphate, magnesium phosphate or chrome phosphate solution are respectively by phosphoric acid and aluminium oxide, magnesia, the chromium oxide system of reacting It is standby to form.
In implementing one, the silica solution is acidic silicasol, and pH value is 2~4, and partial size is 5~20nm.The acidity silicon Colloidal sol and coating system good compatibility.
In implementing one, the surface modifier is wetting dispersing agent and defoaming agent, and the wetting dispersing agent is The mixture of one or more of DISPERBYK-180, DISPERBYK-190, DISPERBYK-192;The defoaming agent is The mixture of one or more of BYK-022, BYK-024, BYK-028.
Technical solution of the present invention also proposes a kind of method for preparing above-mentioned graphene inorganic phosphate aluminium paint coating, special Sign is: the step of this method, is as follows:
Step 1: by phosphate, silica solution, surface modifier and deionized water are mixed evenly after weighing according to the ratio, so After graphene is added, aluminium powder is uniformly added in ultrasonic disperse afterwards, obtain graphene inorganic phosphate aluminium paint after mixing evenly, to With;
Step 2: spray the graphene inorganic phosphate aluminium paint in ferrous metals specimen surface, be dried at room temperature for Few 20min;
Step 3: the sample after drying is heated to 70~90 DEG C, at least 15min is kept the temperature, continues to be heated to 330~350 DEG C, at least 30min is kept the temperature, room temperature is cooled to the furnace, obtains graphene inorganic phosphate aluminized coating.
Graphene inorganic phosphate aluminium paint described in technical solution of the present invention uses graphene as modifying agent, using aluminium powder It as anticorrosive packing, uses phosphate solution and silica solution for film forming matter, and is added with wetting dispersing agent and defoaming agent conduct Surface modifier.Technical solution of the present invention the advantages of and feature it is as follows:
The invention preparation coating, except have the characteristics that general phosphate aluminized coating high temperature resistant, it is corrosion resistant in addition to, due to addition Graphene modifying agent, the graphene with conductive characteristic can be overlapped between aluminum particle, make coating surface without blast Processing can be connected, in ferrous metals specimen surface in use, can form galvanic anode protection by iron-Aluminium primary cell effect Shield effect, has good antiseptic property;Meanwhile the graphene of sheet can be filled in the hole of coating surface, make coating Surface compact, therefore, this can be used alone, and the hole of coating surface is filled without mating closing investment precoat.
Specific embodiment
Illustrate the graphene inorganic phosphate aluminium paint and its coating production below in conjunction with specific example.In the present invention On the basis of patent, by simply changing or replacing, but the technology with similar technique effect belongs to rights protection model of the present invention It encloses.
Embodiment 1
The process for preparing graphene inorganic phosphate aluminium paint coating is as follows:
By the dosage in table 1, using graphene powder as modifying agent, using ball-type aluminium powder as anticorrosive packing, aluminium powder Partial size is 2~3 μm, uses aluminum phosphate, magnesium phosphate, chromium phosphate and acidic silicasol for film forming matter, and addition wetting dispersing agent is BYK-180, defoaming agent BYK-022 are sprayed after preparing coating on ferrous metals surface, and coating is in drying at room temperature 20min, then In 80 DEG C of holding 15min, finally in 340 DEG C of heating 30min, coating is prepared.
Embodiment 2
The process for preparing graphene inorganic phosphate aluminium paint coating is as follows:
By the dosage in table 1, using graphene powder as modifying agent, using ball-type aluminium powder as anticorrosive packing, aluminium powder Partial size is 3~4 μm, uses aluminum phosphate, magnesium phosphate, chromium phosphate and acidic silicasol for film forming matter, and addition wetting dispersing agent is BYK-190, defoaming agent BYK-024 are sprayed after preparing coating on ferrous metals surface, and coating is in drying at room temperature 20min, then In 80 DEG C of holding 15min, finally in 340 DEG C of heating 30min, coating is prepared.
Embodiment 3
The process for preparing graphene inorganic phosphate aluminium paint coating is as follows:
By the dosage in table 1, using graphene aqueous slurry as modifying agent, using ball-type aluminium powder as anticorrosive packing, Aluminium powder partial size is 2~3 μm, uses aluminum phosphate, magnesium phosphate, chromium phosphate and acidic silicasol for film forming matter, adds wetting and dispersing Agent is BYK-192, defoaming agent BYK-028, is sprayed after preparing coating on ferrous metals surface, coating in drying at room temperature 20min, Then in 80 DEG C of holding 15min, finally in 340 DEG C of heating 30min, coating is prepared.
Embodiment 4
The process for preparing graphene inorganic phosphate aluminium paint coating is as follows:
By the dosage in table 1, using graphene aqueous slurry as modifying agent, using ball-type aluminium powder as anticorrosive packing, Aluminium powder partial size is 3~4 μm, uses aluminum phosphate, magnesium phosphate, chromium phosphate and acidic silicasol for film forming matter, adds wetting and dispersing Agent is BYK-190, defoaming agent BYK-024, is sprayed after preparing coating on ferrous metals surface, coating in drying at room temperature 20min, Then in 80 DEG C of holding 15min, finally in 340 DEG C of heating 30min, coating is prepared.
Table 2 is the main performance of the coating prepared in above-described embodiment.Coating surface conduction is surveyed by multimeter Examination;Coating corrosion resistance can be tested according to ASTM B117 standard by neutral salt spray test.Wherein, a certain performance of coating is very It is prominent to use ● to indicate, performance is met the requirements to be indicated with zero.
Each embodiment coating main performance of table 2
Embodiment Surface conduction Corrosion resistance
1
2
3
4
From Table 2, it can be seen that in comparison, the coating surface conduction prepared using embodiment 1 and embodiment 2 It is good, this with that graphene powder has been all made of in embodiment is related as modifying agent, embodiment 3 and embodiment 4 have better resistance to Corrosive nature, graphene aqueous slurry is related as modifying agent with using.

Claims (8)

1. a kind of graphene inorganic phosphate aluminium paint, it is characterised in that: the chemical component and weight percent of the coating are as follows: stone Black alkene 0.1-1%, aluminium powder 35-45%, phosphate 15-20%, silica solution 2-5%, surface modifier 1-2%, surplus are deionization Water.
2. graphene inorganic phosphate aluminium paint according to claim 1, it is characterised in that: the graphene is graphene Powder or graphene aqueous slurry.
3. graphene inorganic phosphate aluminium paint according to claim 1, it is characterised in that: the aluminium powder is ball-type aluminium Powder, partial size are 2~5 μm.
4. graphene inorganic phosphate aluminium paint according to claim 1, it is characterised in that: the phosphate solution is phosphorus The mixture of one or more of sour aluminium, magnesium phosphate or chrome phosphate solution.
5. graphene inorganic phosphate aluminium paint according to claim 4, it is characterised in that: aluminum phosphate, magnesium phosphate or phosphorus Sour chromium solution is reacted by phosphoric acid with aluminium oxide, magnesia, chromium oxide respectively to be prepared.
6. graphene inorganic phosphate aluminium paint according to claim 1, it is characterised in that: the silica solution is acid silicon Colloidal sol, pH value are 2~4, and partial size is 5~20nm.
7. graphene inorganic phosphate aluminium paint according to claim 1, it is characterised in that: the surface modifier is wetting Dispersing agent and defoaming agent, the wetting dispersing agent are in DISPERBYK-180, DISPERBYK-190, DISPERBYK-192 One or more of mixtures;The defoaming agent is the mixture of one or more of BYK-022, BYK-024, BYK-028.
8. the method for preparing graphene inorganic phosphate aluminium paint coating described in claim 1, it is characterised in that: the step of this method It is rapid as follows:
Step 1: by phosphate, silica solution, surface modifier and deionized water are mixed evenly after weighing according to the ratio, then plus Enter graphene, aluminium powder is uniformly added in ultrasonic disperse afterwards, obtains graphene inorganic phosphate aluminium paint after mixing evenly, for use;
Step 2: spraying the graphene inorganic phosphate aluminium paint in ferrous metals specimen surface, it is dried at room temperature at least 20min;
Step 3: the sample after drying is heated to 70~90 DEG C, at least 15min is kept the temperature, continues to be heated to 330~350 DEG C, protect Temperature at least 30min, cools to room temperature with the furnace, obtains graphene inorganic phosphate aluminized coating.
CN201910715267.1A 2019-08-02 2019-08-02 A kind of graphene inorganic phosphate aluminium paint and its coating production Pending CN110467837A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN114031960A (en) * 2021-09-15 2022-02-11 天津大学 Corrosion-resistant antifouling aluminum phosphate coating and preparation method and application thereof
CN114733997A (en) * 2022-06-13 2022-07-12 中国航发北京航空材料研究院 Coating for precision sand mold casting core and preparation method thereof
CN115537079A (en) * 2022-07-05 2022-12-30 港珠澳大桥管理局 Water-sensitive color-changing material and preparation method and application thereof
CN115895303A (en) * 2022-11-15 2023-04-04 中国科学院宁波材料技术与工程研究所 High-temperature-resistant anticorrosive water-based phosphate ceramic coating with core-shell structured filler

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114031960A (en) * 2021-09-15 2022-02-11 天津大学 Corrosion-resistant antifouling aluminum phosphate coating and preparation method and application thereof
CN114733997A (en) * 2022-06-13 2022-07-12 中国航发北京航空材料研究院 Coating for precision sand mold casting core and preparation method thereof
CN114733997B (en) * 2022-06-13 2022-08-30 中国航发北京航空材料研究院 Coating for precision sand mold casting core and preparation method thereof
CN115537079A (en) * 2022-07-05 2022-12-30 港珠澳大桥管理局 Water-sensitive color-changing material and preparation method and application thereof
CN115895303A (en) * 2022-11-15 2023-04-04 中国科学院宁波材料技术与工程研究所 High-temperature-resistant anticorrosive water-based phosphate ceramic coating with core-shell structured filler
CN115895303B (en) * 2022-11-15 2024-02-02 中国科学院宁波材料技术与工程研究所 High-temperature-resistant corrosion-resistant water-based phosphate ceramic coating with core-shell structured filler

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Application publication date: 20191119